我可以在Asp.Net代码中获取Javascripts值 [英] Can I Get Javascripts Values In Asp.Net Code

问题描述

嗨

i有这个地图的脚本，我想在后面的代码中使用latude和longitued的值，所以我可以得到它吗？

hi
i have this scripts for maps and i want to take the value of latude and longitued in code behind so can i get it?

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC6v5-2uaq_wusHDktM9ILcqIrlPtnZgEk&sensor=false">
</script>

<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false&libraries=places">
</script>

<script type="text/javascript">
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(success);
    } else {
        alert("Geo Location is not supported on your current browser!");
    }
    function success(position) {
        var lat = position.coords.latitude;
        var long = position.coords.longitude;
        var city = position.coords.locality;
        var myLatlng = new google.maps.LatLng(lat, long);
        var myOptions = {
            center: myLatlng,
            zoom: 12,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
        var marker = new google.maps.Marker({
            position: myLatlng,
            title: "lat: " + lat + " long: " + long
        });

        marker.setMap(map);
        var infowindow = new google.maps.InfoWindow({ content: "<font color="black">User Address<br /> Latitude:" + lat + "<br /> Longitude:" + long + "" });
        infowindow.open(map, marker);
    }
</script></font>

推荐答案

让我们看一个示例，将javascript中的值从一个页面传递到另一页：

1.在第一个aspx页面中，说Page1.aspx，添加：

Let see an example to pass a value from javascript from one page to another page:
1. In the first aspx page, say Page1.aspx, add:

<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:Button ID="Button1" runat="server"  OnClientClick="passValue2CodeBehind();" Text="Button" onclick="Button1_Click" />

2.在第一个as后面的代码中px页面，在Page_Load事件中注册一个javascript：

2. In the code behind of the first aspx page, register a javascript in the Page_Load event:

ClientScript.RegisterStartupScript(this.GetType(), "myscript", "<script language='javascript'>function passValue2CodeBehind() {  var lat='1.2345'; document.getElementById('HiddenField1').value = lat; }  </script>");

3.将此行添加到后面代码中的Button1_Click：

3. Add this line to the Button1_Click in the code behind:

Response.Redirect("~/Page2.aspx?lat=" + HiddenField1.Value);

4.创建Page2。 aspx并添加标签：

4. Create the Page2.aspx and add a label:

<asp:Label ID="Label1" runat="server"></asp:Label>

5.在Page2.aspx后面的代码的Page_Load事件中，添加：

5. In the Page_Load event of the code behind of Page2.aspx, add this:

Label1.Text = this.Request.QueryString["lat"];

现在，启动Page1.aspx以查看工作情况。

Now, launch Page1.aspx to see the working.

最简单的方法是设置HiddenFields中的经度和纬度值通过javascript然后通过Codebehind代码检索它。

Easiest way would be to set the longitude and latitude values in HiddenFields through javascript and then retrieve it through Codebehind code.

我用动态数据解决它

这个脚本document.getElementById（'HiddenField1 '）。value = lat;

无法获取内部数据，它给字符串找到内部数据我找到另一个解决方案

i solve it but with dynamic data
this script document.getElementById('HiddenField1').value = lat;
can not get the inter data it give string to find inter data i find another solution

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